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Multiplication & Division Properties

Multiplication & Division Properties. Ch. 7-2. When you see a Multiplication problem, you can use the DIVISION Property of Equality to solve it!. 3x = 15. 3. Remember – a FRACTION means to divide!. 3. x. =. 5. CHECK your ANSWER to make sure it is CORRECT!!!. 3 x 5 = 15.

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Multiplication & Division Properties

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  1. Multiplication & Division Properties Ch. 7-2

  2. When you see a Multiplication problem, you can use the DIVISION Property of Equality to solve it! 3x = 15 3 Remember – a FRACTION means to divide! 3 x = 5 CHECK your ANSWER to make sure it is CORRECT!!! 3 x 5= 15

  3. 2x = 16 2 2 x = 8 2 x 8 = 16

  4. 0.5x = 3.75 0.5 0.5 x = 7.5 0.5 x 7.5 = 3.75

  5. 3/4 = 1/3 y ÷ 1/3 ÷ 1/3 Remember To divide fractions you SAME, CHANGE, FLIP 3/4 x 3/1 = 9/4 3/4 ÷ 1/3 y 2 1/4 = 1/3 x 9/4 = 9/12 When checking Mixed Numbers use IMPROPER FRACTIONS!!!

  6. When you see a Division problem, you can use the Multiplication Property of Equality to solve it! x = 5 X 6 X 6 6 Multiply BOTH sides to be equal! = x 30 CHECK your ANSWER to make sure it is CORRECT!!! 30 / 6 = 5

  7. x = 16 X 4 X 4 4 = x 64 64 / 4 = 16

  8. x = 11.2 X 1.5 X 1.5 1.5 = x 16.8 16.8 / 1.5 = 11.2

  9. x = 3/8 X 4 X 4 4 3/8 x 4/1 = 12/8 x = 1 1/2 12/8 ÷ 4 = 3/8

  10. Four families decide to buy Mr. P an “Outstanding Teacher of the Year” gift. The gift is worth $102. Write an equation and find out how much each family must spend. = 4x 102 4 4 x = $25.50

  11. The Mt. Fujiama is one-third the age of the Great Wall of China. If T. Fujiama is 954 years old, write an equation to find the wall’s age. m = 954 x 3 x 3 3 m = 2,862 yrs

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